Description of algorithm
Full domain
American sector
European sector
Asian sector
GODAE regions
  Ice concntr, edge pos
  Contingency tables

Validation of sea ice concentration - GODAE regions

Bulletin date: 2022-06-02

Model: ARC MFC - TOPAZ

Data source: OSI SAF N.H. sea ice concentration

Model vs. observations, sea ice class contingency tables

Date: 2022-06-06

Best estimate

Forecast

Arctic Deep Basin:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 63 2 6 1 0 0 0
OW 0 35 2 23 1 0 0 0
VODI 0 31 7 44 5 0 0 0
ODI 0 27 2 62 25 5 0 0
CDI 0 61 11 166 268 345 39 0
VCDI 0 0 0 1 72 4677 16602 14319
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 17 1 5 1 0 0 0
OW 0 25 1 15 1 0 0 0
VODI 0 45 1 21 5 0 0 0
ODI 0 35 8 41 15 5 3 0
CDI 0 95 13 200 224 346 99 0
VCDI 0 0 0 20 126 4676 16539 14319

Queen Elisabeth Islands:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 6 2 0 0 0
ODI 0 0 0 8 4 7 0 0
CDI 0 0 0 1 3 96 29 3
VCDI 0 0 0 3 100 395 1317 1159
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 2 1 0 0 0
ODI 0 0 0 8 5 7 0 1
CDI 0 0 0 5 3 64 69 14
VCDI 0 0 0 3 100 427 1277 1147

Beaufort Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 3 0 0 0
ODI 0 0 0 0 19 0 0 0
CDI 0 0 0 0 112 31 0 0
VCDI 0 0 0 24 245 1398 6388 1762
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 2 0 0 0
ODI 0 0 0 0 16 0 0 0
CDI 0 0 0 0 67 22 0 0
VCDI 0 0 0 24 294 1407 6388 1762

Chuckchi Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 351 6 41 27 1 0 0
OW 0 61 4 24 14 1 0 0
VODI 0 56 3 41 28 0 0 0
ODI 0 74 6 79 126 0 0 0
CDI 0 147 22 142 291 327 49 0
VCDI 0 0 0 1 45 907 2775 5
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 255 4 39 31 1 0 0
OW 0 61 2 16 11 1 0 0
VODI 0 68 4 16 26 0 0 0
ODI 0 77 4 48 56 0 0 0
CDI 0 171 20 164 298 238 45 0
VCDI 0 57 7 45 109 996 2779 5

Siberian Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 5 0 0 0
CDI 0 0 0 0 84 93 18 0
VCDI 0 0 0 0 93 1076 4289 1588
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 2 0 0 0
CDI 0 0 0 0 39 47 34 0
VCDI 0 0 0 0 141 1122 4273 1588

Laptev Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 46 11 30 8 1 0 0
VODI 0 61 7 64 28 17 0 0
ODI 0 73 4 55 31 25 9 0
CDI 0 314 24 242 200 311 40 0
VCDI 0 142 21 254 476 1230 1602 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 3 2 2 0 0 0 0
OW 0 20 4 18 3 2 0 0
VODI 0 47 7 21 21 8 3 0
ODI 0 55 2 59 23 25 15 0
CDI 0 241 19 158 93 98 165 0
VCDI 0 270 33 387 603 1451 1468 0

Kara Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 173 8 36 4 0 0 0
OW 0 102 15 64 32 3 0 0
VODI 0 28 12 288 183 11 1 0
ODI 0 2 4 141 706 154 0 0
CDI 0 0 0 30 1265 2165 607 0
VCDI 0 0 0 0 2 193 102 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 153 8 41 12 0 0 0
OW 0 86 11 64 59 5 1 0
VODI 0 40 13 190 187 35 0 0
ODI 0 21 1 111 411 183 5 0
CDI 0 5 6 153 1234 1793 618 0
VCDI 0 0 0 0 289 510 86 0

Barents Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7787 2789 12 49 2 0 0 0
OW 0 187 16 71 3 0 0 0
VODI 0 66 7 92 38 0 0 0
ODI 0 12 1 18 126 4 0 0
CDI 0 5 4 8 18 16 0 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 7787 2594 14 54 2 0 0 0
OW 0 222 6 59 9 0 0 0
VODI 0 186 13 58 39 0 0 0
ODI 0 40 2 50 107 9 0 0
CDI 0 17 4 14 30 11 0 0
VCDI 0 0 1 3 0 0 0 0

Greenland Basin:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5911 2691 22 62 0 0 0 0
OW 0 77 21 168 0 0 0 0
VODI 0 5 2 258 127 1 0 0
ODI 0 0 0 106 405 24 4 0
CDI 0 0 0 6 758 384 25 0
VCDI 0 0 0 0 142 211 286 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 5911 2619 21 134 0 0 0 0
OW 0 101 13 131 49 0 0 0
VODI 0 51 10 112 110 9 2 0
ODI 0 2 1 150 191 41 9 0
CDI 0 0 0 73 840 364 58 0
VCDI 0 0 0 0 242 206 246 0

Southeast Greenland:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8168 3529 48 291 108 5 0 0
OW 0 15 5 62 73 10 0 0
VODI 0 0 1 60 68 32 0 0
ODI 0 0 0 14 136 59 10 0
CDI 0 0 0 0 16 127 151 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 8168 3521 49 348 205 18 0 0
OW 0 17 4 28 86 48 0 0
VODI 0 6 1 45 56 121 35 0
ODI 0 0 0 6 50 40 126 0
CDI 0 0 0 0 4 6 0 0
VCDI 0 0 0 0 0 0 0 0

Baffin Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 534 7 12 2 0 0 0
OW 0 37 17 53 17 2 0 0
VODI 0 15 5 136 91 0 0 0
ODI 0 11 5 177 387 115 1 0
CDI 0 0 0 110 484 1688 384 0
VCDI 0 0 0 0 0 142 1371 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 434 5 15 10 2 0 0
OW 0 75 7 21 31 0 0 0
VODI 0 49 8 78 142 38 0 0
ODI 0 28 9 109 220 139 1 0
CDI 0 11 5 265 557 1661 1144 0
VCDI 0 0 0 0 21 107 611 0

Hudson Bay:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 386 59 982 214 0 0 0
OW 0 49 9 309 250 2 0 0
VODI 0 39 6 270 451 2 0 0
ODI 0 0 0 30 617 112 3 0
CDI 0 0 0 0 580 1893 27 0
VCDI 0 0 0 0 64 521 1712 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 375 58 1037 338 0 0 0
OW 0 32 5 238 226 2 0 0
VODI 0 59 9 229 392 35 0 0
ODI 0 8 2 77 381 158 9 0
CDI 0 0 0 10 743 1519 168 0
VCDI 0 0 0 0 96 816 1565 0

Labrador Sea:

observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 14623 3254 48 348 178 14 0 0
OW 0 26 17 151 184 0 0 0
VODI 0 1 3 158 371 2 0 0
ODI 0 0 0 3 300 57 1 0
CDI 0 0 0 0 29 384 57 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 14623 3257 53 490 407 16 0 0
OW 0 23 11 125 240 0 0 0
VODI 0 1 4 43 224 3 0 0
ODI 0 0 0 2 167 151 5 0
CDI 0 0 0 0 24 287 53 0
VCDI 0 0 0 0 0 0 0 0


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